Physics, 17.11.2019 08:31 deidaralove90
in nature, hot air tends to rise and cool air tends to sink. this is behind the concept of convection heating that is used in ovens. convection currents occur only in fluids such as liquids and gases but not in solids.
which of the examples below is an example of convection?
a; rubbing your hands together.
b; heating a fish tank.
c; basking in the sun.
d; striking a match.
Answers: 2
Physics, 21.06.2019 17:50
In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?
Answers: 2
Physics, 22.06.2019 10:10
Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.
Answers: 1
Physics, 22.06.2019 12:10
Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.
Answers: 3
in nature, hot air tends to rise and cool air tends to sink. this is behind the concept of convectio...
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